Tape For Exhaust Leak

Dougal

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Got a small water leak from the large diameter, final rubber exhaust hose into the cockpit locker. This means there’ll also be some exhaust gases I expect.
Until I replace the hole thing (mega expensive), which tape is best for the repair?
In the past, I’d just use good old fashioned self amalgamating tape, but I see there’s now the more recent Silicone? Anyone have experience of using this?
 
I've used the silicone tape on an antenna plug up a mast. Seemed to go on ok, much like amalg really. It forms a precisely-shaped rubber cover rather than sticking to the fitting. Not sure how well this would work for an exhaust hose.

Another option short of replacing the hose would be to cut it at the hole (also allowing you to inspect the inside in case the rest of it is ready to fall apart as well) and then insert a short length of rigid tube secured with hose clips.

Pete
 
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Another option short of replacing the hose would be to cut it at the hole (also allowing you to inspect the inside in case the rest of it is ready to fall apart as well) and then insert a short length of rigid tube secured with hose clips.

Pete
ASAP Ltd sells them, in grp and s/s.

http://www.asap-supplies.com/straight-grp-exhaust-connector-tube-1200611?nosto=nosto-page-search1

But if the rubber hose is generally rotten I'd replace it straight away otherwise it will fail at some inconvenient time.
 
Got a small water leak from the large diameter, final rubber exhaust hose into the cockpit locker. This means there’ll also be some exhaust gases I expect.
Until I replace the hole thing (mega expensive), which tape is best for the repair?
In the past, I’d just use good old fashioned self amalgamating tape, but I see there’s now the more recent Silicone? Anyone have experience of using this?

motoring back across the North Sea some 3 yrs ago had similar, engine box full of smoke. opened a can of beenz,opened the other end & cut down the cylinder & wrapped this around the pipe then taped it in place.
 
Got a small water leak from the large diameter, final rubber exhaust hose into the cockpit locker. This means there’ll also be some exhaust gases I expect.
Until I replace the hole thing (mega expensive), which tape is best for the repair?
In the past, I’d just use good old fashioned self amalgamating tape, but I see there’s now the more recent Silicone? Anyone have experience of using this?
As these gases are lethal don't bodge it with tape especially if their is any chance of leakage into living or sleeping accommodation
 
As these gases are lethal don't bodge it with tape especially if their is any chance of leakage into living or sleeping accommodation
I agree, what happens is that the spiral wire re inforcement gets exposed by chafe, it then rusts internally along the hose. A bodge to get you home but dont even contemplate a bodge just for now!
Stu
 
But if the rubber hose is generally rotten I'd replace it straight away otherwise it will fail at some inconvenient time.

We don't know what sort of hole it is - quite common for most of the hose to be perfectly fine but one small point has been chafing on some projection and worn through. Fixing that section and securing it so that it won't continue chafing would be perfectly acceptable. But the benefit of cutting it open is that you can have a really good look at the state of it.

Pete
 
I've tried the bean can approach - it didn't work and put us in danger. Fix it properly whilst you can.
Cut it through, check general condition and either use an ASAP joiner or complete replacement as appropriate. You know it makes sense!
 
When my exhaust hose began leaking water the cause was fatigue of the wires in the short length between the silencer and the skin fitting. I didn't cut it open but it seems very much in the nature of fatigue that more strands of wire were already broken or were about to fail. Wrapping tape around the hole would offer very little reinforcement to the hose, which might be expected to fail in a big way in a relatively short time. The consequences could be quite serious, not just the gases, which might be detected early, but the water, which might not.
 
Until I replace the hole thing (mega expensive), which tape is best for the repair?
In the past, I’d just use good old fashioned self amalgamating tape, but I see there’s now the more recent Silicone? Anyone have experience of using this?

I've had a bit of chafe on my exhaust hose due to a failed holding bracket. Replaced bracket and wrapped a couple turns of Silweld tape around the hose to protect it (it wasn't chafed all the way through). Worked well and I now carry a roll in the spares kit for emergency repairs. It's rated up to 260°C.
 
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